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All Journal J@TI (TEKNIK INDUSTRI) Sinergi Journal of Engineering and Technological Sciences Industria: Jurnal Teknologi dan Manajemen Agroindustri Jurnal Sistem dan Manajemen Industri JRSI (Jurnal Rekayasa Sistem dan Industri) Jurnal Teknik Industri: Jurnal Keilmuan dan Aplikasi Teknik Industri JMM (Jurnal Masyarakat Mandiri) IJIES (International Journal of Innovation in Enterprise System) RADIAL: JuRnal PerADaban SaIns RekAyasan dan TeknoLogi JURNAL Al-AZHAR INDONESIA SERI SAINS DAN TEKNOLOGI Jurnal Pendidikan dan Kewirausahaan International Journal of Industrial Optimization (IJIO) Journal of Industrial Engineering and Operation Management (JIEOM) Jurnal Ilmiah Wahana Pendidikan International Journal of Social Service and Research Jurnal Pengabdian Masyarakat Aufa (JPMA) Journal of Advanced Technology and Multidiscipline (JATM) eProceedings of Engineering Eduvest - Journal of Universal Studies Innovative: Journal Of Social Science Research RADIAL: Jurnal Peradaban Sains, Rekayasa dan Teknologi
Ilma Mufidah
Telkom University
Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Neuroscience Public Health Social Sciences Transportation Other

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Journal : Sinergi

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Inventory optimization model using Artificial Neural Network method and Continuous Review (s,Q) Setyaningrum, Hanny; Sriwana, Iphov Kumala; Mufidah, Ilma
SINERGI Vol 29, No 1 (2025)
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/sinergi.2025.1.013

Abstract

The medical device industry company experienced the problem of prolonged accumulation of finished goods in the warehouse, causing one of the safety box items to be defective and damaged. Therefore, this study aims to plan demand forecasting and design inventory policies that consider repair items caused during the buildup of finished goods in the warehouse to minimize total inventory costs using ANN and Continuous Review (s,Q) methods. Demand forecasting is carried out for the next 20 months, from May 2023 to December 2024, using the ANN model with a total forecasting of 17936 units of inner items and 3370 units of outer items. After that, the inventory policy calculation uses the continuous review (s,Q) method. The calculation results show a decrease in the total inventory cost on inner items by 83% and outer items by 79%. After demand forecasting, there was also a decrease in the total initial inventory cost of inner items by 81% and outer items by 80%. This research develops an inventory optimization model that considers repair items due to the accumulation of goods in the warehouse by integrating holding cost, ordering cost, and repair cost variables to develop inventory policies to be more effective and efficient and to utilize damaged products for repair and resale. The limitation of this research is that it only gets demand forecasting results for the next 20 months because the company only started operating in September 2021 and limited data access. It is hoped that future researchers can plan and design an inventory policy strategy with demand forecasting for the next 10 years, focusing on repair items caused by the accumulation of finished goods in the warehouse.
Co-Authors Adyatama, Achmad Reza Afi Ihsanul Arief Agus Achmad Suhendra Agus Kusnayat Agustin, Rista Reza Virzinia Ajie Ahmad Safar Ajie Ahmad Safari Aldhama, Shofa Aulia Amelia Zunaidi, Rizka Anastasia Febiyani Aniq Atiqi Rohmawati Anwar Azhar Ardani, Farell Arifah Romizah Zalfa Arzeta, Audhiya Fachda Aufar Fikri Dimyati Augustina Asih Rumanti Bandiyah Sri Aprillia Budimansyah , Arief Budimansyah, Arief Chandrawati Putri Wulandari Chiuhsiang Joe Lin Dewanty, Aldarhena Putri Dharmawan, Muhammad Alfian Dimas Ramadhan, Aditya Dino Caesaron Endang Chumaidiyah Firjatullah Nastari Garini, Queenadartha Vania Kusuma Hassani, Gilang Fadly Herfaida Nadia Ningrum Himawan Santoso Husni Amani Iphov Kumala Sriwana Irwan Purnama Jangkung Raharjo Jasmine Raisya Salsabila Jodia Ridha Arrozak Karyo Muji Hartono Kevin RA Joelian Kusuma, Muhammad Rafi Laras Nurul Fazria Latip Sutiyana Luciana Andrawina Lutfita Astifani Rundana Luthfi Romiz Husaini Majid, Falahal Mira Rahayu Mohammad Deni Akbar Muhammad Iqbal Muhammad Rayes Fitra Gifari Nabila, Azzahra Yandra Novi Prihatiningrum Novianti, Irma Paramaditya Arismawati Paramitha, Vanya Amabella Marsha Perdana Suteja Putra Pratya Poeri Suryadhini Putri, Shafa Jasmina Anggita Ramadhani, Muhammad Shiddiq Ratnawia Ratnawia Rino Andias Anugraha Rino Andias Nugraha Riri Indah Lestari, Riri Indah Rizky Paramarta, Muhammad Rulia, Rulia Ryan Gamas Agromega Sadewa, Adhimas Nanda Arya Salim , M Fahmi Sam, Nadia Sadira Santoso, Diesya Latifa Setiawan, Sapphira Rizkitania Setyaningrum, Hanny Shafira Nurlita Sheila Amalia Salma Silvi Istiqomah Sri Martini Sri Martini Sri Widaningrum Sunar, Muhammad Akbar Tubagus, Hichael Rally Vincent, Adriel Maruli Vip Paramarta Yudistira Yudistira Yusha Rahman Adiguna Yusuf Nugroho Doyo Yekti Yusuf Nur Wijayanto